Good starting point for professional AI workstation?

Have you built pc's before or mostly relied on rented VPS'? Sometimes enterprise grade hardware like this can be quite a bit more involved / frustrating than just putting together a normal gaming machine.

I've been toying with the idea of building a dedicated machine to continue working on my FPV flight control model.

So far I've just been renting gpu time but it's getting expensive. I also occasionally use qwen3-coder in my homelab but my headless "inference" machine is quite limited with an RTX 3080.

Curious if this build from llamabuilds.ai looks good? In terms of gpu etc? I'm maybe considering buying more GPUs in the future - hard to tell if stacking RTX 6000 ADA's is worthwhile!

Thanks HN!